nanocore | fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6

General

Target

fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe
Size

415KB
MD5

5ac04320fa5f94ffc714b50da5222df9
SHA1

b2aa5bc613ed3d735b954f5503f522d986fa1a36
SHA256

fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6
SHA512

086233bec69e6dc29aa57d6a046230a8fe37bb49c9f46008fe1c6f85d1799655c0262cd9e8794ddd783213e09dd14e06a9247e2fd05e30bc629007b86de56fcc
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUD:ITNYrnE3bm/CiejewY5vA

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

[email protected]:46218

178.32.224.116:46218

Mutex

4af74541-e3f1-469c-8af7-efe4071b81cf

Attributes

activate_away_mode
false
backup_connection_host
178.32.224.116
backup_dns_server
buffer_size
65535
build_time
2018-07-28T12:59:38.488799236Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
46218
default_group
tourex
enable_debug_mode
true
gc_threshold
1.048576e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
4af74541-e3f1-469c-8af7-efe4071b81cf
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
[email protected]
primary_dns_server
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Nanocore family
nanocore

Executes dropped EXE 1 IoCs

pid	Process
2672	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
2880	fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	regasm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2672 set thread context of 2720	2672	ximo2ubzn1i.exe	31

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2720	regasm.exe
2720	regasm.exe
2720	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2720	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2720	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 2672	2880	fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe	30
PID 2880 wrote to memory of 2672	2880	fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe	30
PID 2880 wrote to memory of 2672	2880	fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe	30
PID 2880 wrote to memory of 2672	2880	fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe	30
PID 2672 wrote to memory of 2720	2672	ximo2ubzn1i.exe	31
PID 2672 wrote to memory of 2720	2672	ximo2ubzn1i.exe	31
PID 2672 wrote to memory of 2720	2672	ximo2ubzn1i.exe	31
PID 2672 wrote to memory of 2720	2672	ximo2ubzn1i.exe	31
PID 2672 wrote to memory of 2720	2672	ximo2ubzn1i.exe	31
PID 2672 wrote to memory of 2720	2672	ximo2ubzn1i.exe	31
PID 2672 wrote to memory of 2720	2672	ximo2ubzn1i.exe	31
PID 2672 wrote to memory of 2720	2672	ximo2ubzn1i.exe	31
PID 2672 wrote to memory of 2720	2672	ximo2ubzn1i.exe	31
PID 2672 wrote to memory of 2720	2672	ximo2ubzn1i.exe	31
PID 2672 wrote to memory of 2720	2672	ximo2ubzn1i.exe	31
PID 2672 wrote to memory of 2720	2672	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe
"C:\Users\Admin\AppData\Local\Temp\fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2880
- C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
  "C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2672
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
    3⤵
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:2720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
415KB

MD5
14ff2cc82265444576fff5697da3aac5

SHA1
1c3a2770d0c112cc06fd610d40d56dbf6ff5398f

SHA256
511b1cee4e85f4cd1177b6d5f98637d6b57da375cbf02e0b9dfdf5fbde3d81cc

SHA512
914dbe9c54b5bd5a2ef2ca36cd47ac6f4aa75c6cdbb462a0bf1f02f2604c3c18c43185662e76eccf244fed8bf23f32dd3f1009065965f767a7b16c8ff2b404ae

Download Submit
memory/2672-13-0x0000000073DC0000-0x00000000744AE000-memory.dmp

Filesize
6.9MB

Download
memory/2672-34-0x0000000073DC0000-0x00000000744AE000-memory.dmp

Filesize
6.9MB

Download
memory/2672-33-0x0000000073DC0000-0x00000000744AE000-memory.dmp

Filesize
6.9MB

Download
memory/2672-14-0x0000000073DC0000-0x00000000744AE000-memory.dmp

Filesize
6.9MB

Download
memory/2672-12-0x0000000000C30000-0x0000000000C9E000-memory.dmp

Filesize
440KB

Download
memory/2720-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2720-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2720-32-0x00000000006B0000-0x00000000006BA000-memory.dmp

Filesize
40KB

Download
memory/2720-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2720-31-0x0000000000950000-0x000000000096E000-memory.dmp

Filesize
120KB

Download
memory/2720-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2720-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2720-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2720-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2720-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2720-30-0x00000000003F0000-0x00000000003FA000-memory.dmp

Filesize
40KB

Download
memory/2880-3-0x0000000000930000-0x000000000096C000-memory.dmp

Filesize
240KB

Download
memory/2880-0-0x0000000073DCE000-0x0000000073DCF000-memory.dmp

Filesize
4KB

Download
memory/2880-15-0x0000000073DC0000-0x00000000744AE000-memory.dmp

Filesize
6.9MB

Download
memory/2880-2-0x0000000073DC0000-0x00000000744AE000-memory.dmp

Filesize
6.9MB

Download
memory/2880-1-0x0000000000990000-0x00000000009FE000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads